Laser & Optoelectronics Progress, Volume. 58, Issue 1, 112004(2021)
One-Plane Two-Hole Feature Positioning Method Based on Line Laser On-Machine Measurement
This article focuses on the research of fast-positioning method of one-plane two-hole feature, while aiming at the precise measurement and positioning of workpieces at a production site, and it builds a set of on-machine measurement system based on the computer numerical control (CNC) platform and line laser. Using the isotropy of the spherical surface, global calibration of the line laser on-machine measurement system is achieved through a standard sphere. The plane and holes are used as the positioning features. Based on the measurement data obtained by the line laser sensor, a fitting algorithm is designed and the size and position information of the relevant features are calculated. Finally, a test piece is used for the fast positioning test. The test results exhibit that the on-machine measurement system can meet the requirements of workpiece positioning and alignment in production and processing, and the system also possesses high accuracy and stability.
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Zhou Yanfeng, Chen Weifang, Cao Xinhang, Pan Lijian. One-Plane Two-Hole Feature Positioning Method Based on Line Laser On-Machine Measurement[J]. Laser & Optoelectronics Progress, 2021, 58(1): 112004
Category: Instrumentation, Measurement and Metrology
Received: Jun. 1, 2020
Accepted: --
Published Online: Jan. 4, 2021
The Author Email: Weifang Chen (meewfchen@nuaa.edu.cn)